As a child I was not interested in science. I was merely interested in things human, the human side of nature, if you like, and I continue to be interested in that. That's what motivates me.

Eventually we'll realize that if we destroy the ecosystem, we destroy ourselves.

I think of evolution as an error-making and error-correcting process, and we are constantly learning from experience.

Intuition will tell the thinking mind where to look next.

Life is an error-making and an error-correctin g process, and nature in marking man's papers will grade him for wisdom as measured both by survival and by the quality of life of those who survive.

What is … important is that we — number one: Learn to live with each other. Number two: try to bring out the best in each other. The best from the best, and the best from those who, perhaps, might not have the same endowment. And so this bespeaks an entirely different philosophy — a different way of life — a different kind of relationship — where the object is not to put down the other, but to raise up the other.

When you inoculate children with a polio vaccine, you don't sleep well for two or three months.